1961529 has 8 divisors (see below), whose sum is σ = 2629440. Its totient is φ = 1300656.

The previous prime is 1961527. The next prime is 1961537. The reversal of 1961529 is 9251691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1961529 - 2¹ = 1961527 is a prime.

1961529 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1961529.

It is not an unprimeable number, because it can be changed into a prime (1961527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (328680).

2^1961529 is an apocalyptic number.

It is an amenable number.

1961529 is a deficient number, since it is larger than the sum of its proper divisors (667911).

1961529 is a wasteful number, since it uses less digits than its factorization.

1961529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519.

The product of its digits is 4860, while the sum is 33.

The square root of 1961529 is about 1400.5459649722. The cubic root of 1961529 is about 125.1790288004.

The spelling of 1961529 in words is "one million, nine hundred sixty-one thousand, five hundred twenty-nine".